Koki Nagamine has officiated 86 matches on record, averaging 2.7 cards and 17.3 fouls per game β a lenient official. A player is dismissed roughly once every 6 games, and the spot is pointed to 0.17 times per match. Home teams win 48% of matches under him, drawing 19% and losing 34%. Most active in the J2-League (40 matches). 37% of his bookings come after the 75th minute, with the first card around the 44'.